# Locate SDL2_ttf library
# This module defines
# SDL2_ttf_LIBRARY, the name of the library to link against
# SDL2_ttf_FOUND, if false, do not try to link to SDL2_ttf
# SDL2_ttf_INCLUDE_DIR, where to find SDL_gpu.h
#
# Additional Note: If you see an empty SDL2_ttf_LIBRARY_TEMP in your configuration
# and no SDL2_ttf_LIBRARY, it means CMake did not find your SDL2_ttf library
# (SDL2_ttf.dll, libSDL2_ttf.so, SDL2_ttf.framework, etc).
# Set SDL2_ttf_LIBRARY_TEMP to point to your SDL2_ttf library, and configure again.
# These values are used to generate the final SDL2_ttf_LIBRARY
# variable, but when these values are unset, SDL2_ttf_LIBRARY does not get created.
#
#
# $SDL2DIR is an environment variable that would
# correspond to the ./configure --prefix=$SDL2DIR
# used in building SDL2.
# l.e.galup  9-20-02
#
# Adapted from FindSDL2.cmake by Jonathan Dearborn
#
# Modified by Eric Wing.
# Added code to assist with automated building by using environmental variables
# and providing a more controlled/consistent search behavior.
# Added new modifications to recognize OS X frameworks and
# additional Unix paths (FreeBSD, etc).
# Also corrected the header search path to follow "proper" SDL2 guidelines.
# Added a search for SDL2main which is needed by some platforms.
# Added a search for threads which is needed by some platforms.
# Added needed compile switches for MinGW.
#
# On OSX, this will prefer the Framework version (if found) over others.
# People will have to manually change the cache values of
# SDL2_LIBRARY to override this selection or set the CMake environment
# CMAKE_INCLUDE_PATH to modify the search paths.
#
# Note that the header path has changed from SDL2/SDL.h to just SDL.h
# This needed to change because "proper" SDL2 convention
# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
# reasons because not all systems place things in SDL2/ (see FreeBSD).
#
# Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake
# module with the minor edit of changing "SDL" to "SDL2" where necessary. This
# was not created for redistribution, and exists temporarily pending official
# SDL2 CMake modules.

#=============================================================================
# Copyright 2003-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

FIND_PATH(SDL2_ttf_INCLUDE_DIR SDL.h
  HINTS
  $ENV{SDL2DIR}
  PATH_SUFFIXES include/SDL2 include
  PATHS
  ~/Library/Frameworks
  /Library/Frameworks
  /usr/local/include/SDL2
  /usr/include/SDL2
  /sw # Fink
  /opt/local # DarwinPorts
  /opt/csw # Blastwave
  /opt
)
#MESSAGE("SDL2_ttf_INCLUDE_DIR is ${SDL2_ttf_INCLUDE_DIR}")

FIND_LIBRARY(SDL2_ttf_LIBRARY_TEMP
  NAMES SDL2_ttf
  HINTS
  $ENV{SDL2DIR}
  PATH_SUFFIXES lib64 lib
  PATHS
  /sw
  /opt/local
  /opt/csw
  /opt
)

#MESSAGE("SDL2_ttf_LIBRARY_TEMP is ${SDL2_ttf_LIBRARY_TEMP}")

# MinGW needs an additional library, mwindows
# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows
# (Actually on second look, I think it only needs one of the m* libraries.)
IF(MINGW)
  SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW")
ENDIF(MINGW)

SET(SDL2_ttf_FOUND "NO")
IF(SDL2_ttf_LIBRARY_TEMP)

  # For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
  # CMake doesn't display the -framework Cocoa string in the UI even
  # though it actually is there if I modify a pre-used variable.
  # I think it has something to do with the CACHE STRING.
  # So I use a temporary variable until the end so I can set the
  # "real" variable in one-shot.
  IF(APPLE)
    SET(SDL2_ttf_LIBRARY_TEMP ${SDL2_ttf_LIBRARY_TEMP} "-framework Cocoa")
  ENDIF(APPLE)


  # For MinGW library
  IF(MINGW)
    SET(SDL2_ttf_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_ttf_LIBRARY_TEMP})
  ENDIF(MINGW)

  # Set the final string here so the GUI reflects the final state.
  SET(SDL2_ttf_LIBRARY ${SDL2_ttf_LIBRARY_TEMP} CACHE STRING "Where the SDL2_ttf Library can be found")
  # Set the temp variable to INTERNAL so it is not seen in the CMake GUI
  SET(SDL2_ttf_LIBRARY_TEMP "${SDL2_ttf_LIBRARY_TEMP}" CACHE INTERNAL "")

  SET(SDL2_ttf_FOUND "YES")
ENDIF(SDL2_ttf_LIBRARY_TEMP)

INCLUDE(FindPackageHandleStandardArgs)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_ttf
                                  REQUIRED_VARS SDL2_ttf_LIBRARY SDL2_ttf_INCLUDE_DIR)
